<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<style>
		body{
			display: flex;
		}
		.kk{
			width: 300px;
			height: 300px;
			border: 1px solid black;
			
		}
		.box{
			width: 100px;
			height: 100px;
			background: lightblue;
			transition: 1s;
		}
		
		.kk:nth-child(1):hover .box{
			transform: skew(60deg, 30deg);
		}
		
		.kk:nth-child(2):hover .box{
			transform: skew(30deg);
		}
		
		.kk:nth-child(3):hover .box{
			transform: skewX(30deg);
		}
		
		.kk:nth-child(4):hover .box{
			transform: skewY(30deg);
		}
	</style>
	<body>
		<div class="kk">
			<div class="box"></div>
		</div>
		<div class="kk">
			<div class="box"></div>
		</div>
		<div class="kk">
			<div class="box"></div>
		</div>
		<div class="kk">
			<div class="box"></div>
		</div>
		
	</body>
</html>